Statistically a ship tends to get better results spending their action focusing or evading instead of increasing their agility (unless that ship has 1 or fewer base agility). However, the value of +1 agility grows as you take more attacks in a round, as a token can be spent only once. Versus swarms or multi-attack hits such as TIE/D, R2-F2's action can start to compete.

R2-F2 may get the best use with Biggs Darklighter, due to his ability to draw fire away from other nearby friendly targets and focus all (or nearly all) enemy firepower on himself. Increasing Biggs' ability to dodge more blows makes him a consistently more difficult target to hit, thus increasing the survivability of the entire Rebel team.

Another of the better uses of R2-F2 may be Luke Skywalker, whose ability helps make the extra agility die more effective than it normally would be. The table below compares the expected evades after a focus action and an R2-F2 action based on how many green dice Luke is likely to roll before R2-F2 based on range, whether or not the attack is obstructed, and the effects of any upgrades or enemy abilities.